Sustainability consultant Carl Duivenvoorden says heat pumps are the "king" of all heat alternatives. Here's why.

"I installed a heat pump two years ago and really dread the wintertime electric bills," writes one reader. Another: "Let’s ...

Ductless air conditioning systems, or mini splits, can heat and cool your home in a single, easy-to-install, compact system.

There’s been steady growth in the popularity of heat pumps overall, but their attractiveness varies across different market segments, according to an HVAC executive who follows the trends.